Public bug reported:
Since updating to 3.4, the distance from which I can get a working wireless
connection to my router has gotten smaller. With 3.2 (right now using
3.2.0-24-generic) I can get a stable ~12Mb/s connection even with a low network
quality:
Quality=31/70 Signal level=-79 dBm
Using 3.4, I can rarely connect to the router at all from this location and
when the connection is there barely any data is transferred.
I filed bug 1010710 from a working kernel as comparison.
ProblemType: BugDistroRelease: Ubuntu 12.10
Package: linux-image-3.4.0-5-generic 3.4.0-5.11
ProcVersionSignature: Ubuntu 3.4.0-5.11-generic 3.4.0
Uname: Linux 3.4.0-5-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.1.1-0ubuntu2
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: yofel 3130 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf2420000 irq 45'
Mixer name : 'Conexant CX20585'
Components : 'HDA:14f15069,17aa218b,00100302'
Controls : 21
Simple ctrls : 11
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xcdefc000 irq 16'
Mixer name : 'Nvidia ID b'
Components : 'HDA:10de000b,10de0101,00100100'
Controls : 0
Simple ctrls : 0
Card1.Amixer.values:
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
6MHT43WW-1.18'
Mixer name : 'ThinkPad EC 6MHT43WW-1.18'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.Amixer.values:
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [off]
Date: Sat Jun 9 00:27:46 2012
HibernationDevice: RESUME=UUID=e1dde51e-11e5-484c-8d86-c9cfdcdbf4c3
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20111007)
MachineType: LENOVO 4349W1R
ProcEnviron:
SHELL=/bin/bash
TERM=xterm
PATH=(custom, user)
LANG=en_US.UTF-8
LANGUAGE=en_US.UTF-8
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.4.0-5-generic
root=UUID=238190c9-6304-41fe-892a-28596720e11b ro rootflags=subvol=@ splash
vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.4.0-5-generic N/A
linux-backports-modules-3.4.0-5-generic N/A
linux-firmware 1.81SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/26/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6MET81WW (1.41 )
dmi.board.name: 4349W1R
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr6MET81WW(1.41):bd10/26/2010:svnLENOVO:pn4349W1R:pvrThinkPadT510:rvnLENOVO:rn4349W1R:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4349W1R
dmi.product.version: ThinkPad T510
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug quantal staging
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https://bugs.launchpad.net/bugs/1010709
Title:
Centrino Ultimate-N 6300 wireless quality/range regression in 3.4
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